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प्रश्न
Fill in the following blank with suitable word :
The male organ of reproduction in the flower is the.......... .
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उत्तर
The male sex organ of a flower is stamen.
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संबंधित प्रश्न
Name the parts labelled as A, B, C and D in the diagram given below:-
How is the process of pollination different from fertilization?
A flower may have either male or female reproductive parts. Such a flower is called ______.
Where are a plant's sex organs located?
What is the name of female part of a flower?
Fill in the following blank with suitable word :
The ovary of a flower becomes ....... after fertilisation.
Fill in the following blank with suitable word :
The.......... at the base of the carpel contains egg cells.
In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the zygote?
What is meant by 'unisexual flowers' and 'bisexual flowers'? Give two examples of each.
When an insect sits on the flower of a plant then some particles A present in the top of little stalks in the flower attach to its body hair. When this insect now sits on the flower of another similar plant, then particles A attached to the hair of insect are put on the top of a flask-shaped organ at the centre of flower. The particle A grows a long tube b from the top of flask-shaped organ through which C moves down and reaches the bottom part of flask-shaped organ. Here C fuses with the nucleus of d contained in structure E. the fusion of C and D forms a new cell f which grows and develops into a seed of the plant.
(a) What are particles A? What is the process of transferring A from one flower to another flower of similar plant by the insect known as?
(b) What is the name of tube B?
(c) What is C which moves down through the tube B?
(d) Name D and E.
(e) What is F?
Multiple choice question. Tick (✓) the correct choice:
Unisexual flowers are found in
- mulberry
- mustard
- pea
- sunflower
What part is played by stamens and carpels in reproduction?
“Cell division is a type of reproduction in unicellular organism.” Justify.
Sketch the labeled diagram:
Flower with its sexual reproductive organs
What is cleistogamy? Write one advantage and one disadvantage of it, to the plant.
The essential parts of a flower are ______.
Which of the following are the chemical components of the wall of pollen tube?
Where is the zygote located in the flower after fertilization?
State the post-fertilisation changes that lead to fruit formation in plants.
